diff --git a/DATA/production/workflow-multiplicities.sh b/DATA/production/workflow-multiplicities.sh
index d5afb4262..038905860 100644
--- a/DATA/production/workflow-multiplicities.sh
+++ b/DATA/production/workflow-multiplicities.sh
@@ -16,6 +16,8 @@ SOURCE_GUARD_MULTIPLICITIES=1
 : ${ITSTRK_THREADS:=1}
 : ${ITSTPC_THREADS:=1}
 
+: ${TPCTIMESERIES_THREADS:=1}
+
 : ${TOFMATCH_THREADS:=1}
 
 : ${HIGH_RATE_PP:=0}
@@ -98,6 +100,7 @@ if [[ ! -z ${OPTIMIZED_PARALLEL_ASYNC:-} ]]; then
     ITSTRK_THREADS=2
     ITSTPC_THREADS=2
     SVERTEX_THREADS=4
+    TPCTIMESERIES_THREADS=2
     NGPUS=4
     N_TPCTRK=4
     N_FWDMATCH=2